footer{
    position: fixed;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 120px;
    z-index: 1000;
    background-color: #ffffff;
    border-top: 1px solid #d5d5d5;
    display: flex;
    justify-content: center;
    align-items: center;
    a{
        display: flex;
        flex: 1;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        color: #000;
        span{
            font-size: 30px;
            line-height: 50px;
            &.anticon{
                font-size: 50px;
            }
        }
        &.active{
            color: blue;
            font-weight: bold;
        }
    }
}